2,3-Dichloropropene
Agrochemicals 2025-03-02
2,3-Dichloropropene
Chemical Name: 2,3-Dichloroprop-1-ene
Synonyms: 2,3-Dichloropropylene; DCP
CAS Number: 78-88-6
Molecular Formula: C₃H₄Cl₂
Molecular Weight: 110.97 g/mol
Physical & Chemical Properties
| Property | Value |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Odor | Pungent, chloroform-like |
| Melting Point | -80°C (-112°F) |
| Boiling Point | 94-96°C (201-205°F) |
| Density | 1.224 g/cm³ (20°C) |
| Vapor Pressure | 40 mmHg (20°C) |
| Flash Point | 16°C (61°F) (Flammable) |
| Solubility | Insoluble in water; miscible with organic solvents |
Hazard & Safety Information (GHS)
Danger Symbols:
🔥 Flammable (F)
☠️ Toxic (T)
⚠️ Irritant (Xi)
Hazard Codes:
• H225: Highly flammable liquid and vapor
• H301: Toxic if swallowed
• H315: Causes skin irritation
• H319: Causes serious eye irritation
• H335: May cause respiratory irritation
• H411: Toxic to aquatic life
Protective Measures:
• P210: Keep away from heat/sparks/open flames
• P280: Wear gloves/eye protection
• P301+P310: IF SWALLOWED: Call poison center immediately
• P303+P361+P353: IF ON SKIN: Remove clothing, rinse skin
Chemical Behavior
• Reactivity:
- Polymerizes explosively with strong acids or metals (e.g., aluminum)
- Forms toxic gases (HCl, phosgene) when heated
• Stability: - Stabilized with 0.1% epichlorohydrin or amines
- Light-sensitive (store in amber bottles)
Applications
✔ Intermediate for pesticides (e.g., DDVP)
✔ Organic synthesis (alkylating agent)
✔ Former fumigant (now restricted)
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